Tell HN: Mailjet locked me out of my account with no explanation

I have a blog that adds emails to Mailjet whenever someone subscribes. I have a few hundred subscribers who I email whenever I publish a new blog post.

After about a year of not writing, I decided to start back up. To my surprise, when I tried to log into my Mailjet account, I got a message saying "Account closed due to phishing attempts."

I emailed support and all they would offer me was "Our decision is final. We cannot give you a reason for security reasons. We cannot let you export your list of subscribers."

So, I guess I just lost a few hundred subscribers and there's no way for me to get them back. If my account was compromised (probably not), they should've let me know and helped protect my account. If their system actually detected a phishing attempt, it must be hilariously bad because I was sending a very basic email about a new blog post being published.

Don't be like me. Back up your list of subscribers. You never know when a service like Mailjet will lock you out with no explanation.